Wood pyrolyser

FIELD: heating systems, drying.

SUBSTANCE: invention can be used when utilising industrial wood residue. Dried raw material is put into pyrolysis chamber 1. Into drying chamber 2 live wood is put. Industrial wood residue supplied to silo 26 is fed to gas-generating furnace 5 with screw feeder 14. Gases generated in gas-generating furnace 5 are supplied via gas duct to pyrolysis chamber 1. At wood warming-up stage there supplied is generator gas, with the help of gas blower 4, from pyrolysis chamber 1 through outlet branch pipe 27 and condenser 3 to burner device 7, where it is burning. Flue gases appearing during generator gas burning provide for an additional heating of raw material through pyrolysis chamber 1 wall. After that flue gases are supplied to drying chamber 2 through outlet branch pipe 31 of combustion chamber 6.

EFFECT: improving process efficiency and reducing operating costs.

1 dwg

 

The invention relates to the field of coal chemical production and can be used for disposal of wastes of wood processing enterprises.

Known uglevyzhigatelnuyu furnace containing the heat-insulated housing for installation of containers with firewood and furnace (see, for example, A.S. No. 1204627, MKI SU 1/06, 1986).

The disadvantage of this furnace is the lack of a cooling system, which increases the duration of the cycle and, accordingly, decrease in the performance. In addition, unused gas-vapor mixture pollute the environment.

Also known uglevyzhigatelnuyu furnace, comprising the heat-insulated housing for installation of containers of wood, divided into chambers pyrolysis and drying interconnected by a duct with a water seal, and the camera pyrolysis is equipped with a diffuser mounted in its bottom, and mounted in the upper part of the pipe with blower and intercooler piping which is right beneath the diffuser and piping from the blower summed up in the furnace (see, for example, U.S. Pat. Of the Russian Federation No. 2081148, MKI SU 1/06, 1994).

The disadvantages of this technical solution should include the following. The blower is located at the exit of the chamber of the pyrolysis front of the cooler, which leads to a rapid malfunction due to high temperature Pirogov(450-500° C). The presence of the trap reduces the efficiency of drying, because the moisture of the drying agent.

Closest to the technical essence and the achieved result of the claimed invention is uglevyzhigatelnuyu furnace containing a thermally insulated chamber of the pyrolysis and drying for the installation of containers with firewood furnace, receival, a pipeline with a ventilator and the cooler (see U.S. Pat. Of the Russian Federation No. 2256686, MKI SW 1/04, 2004).

The disadvantages of this technical solution include low efficiency of drying processes and the low degree of utilization of non-condensable gases. Low efficiency of drying caused by the heating of the drying agent through the intermediate heat transfer medium, and low degree of utilization of gases caused by the fact that part of Pirogov emitted to the atmosphere for maintenance mode setup. In addition, a mixture of pyrolysis and combustion gases in the combustion chamber leads to a decrease in their calorific value.

The aim of the invention is to increase the efficiency of the process by increasing productivity, improving the environmental friendliness of the process and reducing operational costs.

This goal is achieved by the fact that the apparatus for the pyrolysis of wood, including the camera pyrolysis and drying, a condenser, a ventilator, a gas furnace and a combustion chamber with burner eliminate the STV, gas furnace is directly connected with the internal volume of the chamber pyrolysis; Luggage pyrolysis is located in the combustion chamber above the burner device and formed with two rectangular channel; a combustion chamber connected by a duct with a drying chamber, there is a possibility of the controlled selection of an excess of a mixture of pyrolysis and generating gas from the discharge line blowers.

Comparative analysis of the prototype will allow us to conclude that the claimed technical solution is characterized by the fact that the gas furnace is directly connected with the internal volume of the chamber pyrolysis; Luggage pyrolysis is located in the combustion chamber above the burner device and formed with two rectangular channel; a combustion chamber connected by a duct with a drying chamber, there is a possibility of the controlled selection of an excess of a mixture of pyrolysis and generating gas from the discharge line blowers.

Due to the fact that the gas furnace is directly connected with the internal volume of the chamber pyrolysis, prevents oxidation perepisannogo product in the pyrolysis process, which leads to higher quality charcoal. The camera position pyrolysis in the combustion chamber above the burner device with the presence of rectangular channels allows for full utilization of non-condensable gases in the Christmas tree device because they are not mixed with the combustion and calorific value does not decrease, but also to intensify the process of pyrolysis by heating of the raw material through the chamber wall of the pyrolysis. The connection of the combustion chamber with the drying chamber allows more efficient to perform the drying process due to the implementation of its hot gases flowing out of the combustion chamber and not through an intermediate heat transfer fluid. The ability of a regulated selection of an excess of a mixture of pyrolysis and gas generator allows its energy use in boilers and heat engines.

The invention is illustrated by the diagram, which presents a General view of the installation for wood pyrolysis (see drawing).

The apparatus for the pyrolysis of wood contains a camera pyrolysis 1, the drying chamber 2, the condenser 3, the ventilator 4, gas furnace 5, the combustion chamber 6, the burner 7.

Gas furnace 5 is a generator, equipped with a screw feeder 14 with the actuator 11, the waste hopper 26 and the blower fan 12. Gas furnace 5 is hermetically closed by a door 24 and is connected to the camera pyrolysis 1 through the gate 10.

Luggage pyrolysis 1 is equipped with a sealed door 17, and the input 28 and a branch pipe 27. Inside the chamber of the pyrolysis installed Raspredelitelnaya 15. Through the outlet pipe 27 Luggage pyrolysis 1 connected in series with the capacitor 3 and ventilator 4. The discharge line blowers 4 is connected through the valve 9, 8, 29 with a burner device 7, the inlet pipe 28 and Energeticheskiy equipment, respectively. Luggage pyrolysis 1 is horizontal in the combustion chamber 6 and forms with her two rectangular channel. In the lower part of the combustion chamber 6 horizontally in the centre is the burner 7. Also, the combustion chamber 6 is supplied with blowing holes 16 and a branch pipe 31. Through the outlet pipe 31 of the combustion chamber 6 is connected with the ejector 30 drying chamber 2. In the upper part of the drying chamber 2 has an outlet 23 for the exhaust gases. The camera is sealed hermetically attached to the side door 24. Inside the chamber there is a container 22 made of perforated metal material on the rollers 19 and the fan 18.

The process of producing charcoal in the apparatus for the pyrolysis of wood is carried out as follows.

Pre-dried raw material is placed into the chamber of the pyrolysis 1 and zakrivatsya cover 17. In the drying chamber 2 is placed raw wood.

Fuel wood waste loaded into the hopper 26, the screw feeder 14 is transmitted in the required amount of gas in the furnace 5. They ignited through which Vertu 24, and gas in the furnace 5 begins the process of gasification. Performance gas furnace 5 is regulated by the frequency of rotation of the actuator 11, valve 13 and the gate 10. Formed in the gas furnace 5 gases are supplied through the gas duct through the inlet 28 into the chamber of the pyrolysis 1 and uniformly distributed over the cross section of the camera pyrolysis 1 through distributive lattice 15, heated pyrolysis raw materials.

The initial stage of the process is absorption of heat from gas combustion chamber 5. After the wood is heated to a temperature of 120-150°With, there is a loss of bound moisture and begins the decomposition process is less persistent organic compounds to form carbon dioxide, carbon monoxide and acetic acid. At the stage of heating the wood producer gas from the chamber pyrolysis 1 through the outlet pipe 27 and the capacitor 3 is supplied by the ventilator 4, when closed, the valve 8, to the burner 7, where it is burning. Formed during the combustion of producer gas furnace gases provide additional heating of the raw material through the chamber wall of the pyrolysis 1. Next, the combustion gases through the outlet pipe 31 of the combustion chamber 6 is fed to the drying chamber 2. In the ejector 30 drying chamber 2 is the mixing of flue gas with air to provide the specified parameters su is strong agent (100-200° C). In the process of drying of the feedstock circulation of the drying agent through the container 22 is carried out by the fan 18. The spent drying agent is released into the atmosphere through the outlet 23 of the drying chamber 2. Also in process is the selection of producer gas through the valve 29 to its use for energy purposes.

Further heating the wood to a temperature inlet 150 up to 450°will cause carbonization of the raw material. With the beginning of the carbonization process depending on the needs of the fuel gas is covered or closed the gate 10. When this process of pyrolysis and drying of raw materials at the expense of the heat of combustion in the combustion device 7 non-condensed perogative.

Throughout all stages of the process of pyrolysis of the mixture of vapors is condensed in the condenser 3 and is collected in the collector 25.

At the end of the pyrolysis process opens the valve 8 closes the valve 9 and the gate 10 and the cooling process begins charcoal. Pyrogate passing through the condenser 3, cooled and served ventilator 4 through valve 8 and the inlet 28 into the chamber of the pyrolysis 1. In the chamber of the pyrolysis 1 pyrogate passing through the charcoal, intensively cooled.

At the end of the cooling process opens the door 17 and is unloading coal. Of the drying chamber 2 is removed, the container 22 with the dried raw material is AutoRAE is placed in the chamber of the pyrolysis of 1, and in the drying chamber is loaded a new container with damp raw material.

Thus, the use of the proposed solution improves the efficiency of the pyrolysis process by increasing productivity, improving environmental performance and reducing operational costs.

The apparatus for the pyrolysis of wood, including the camera pyrolysis and drying, a condenser, a ventilator, a gas furnace and a combustion chamber with a burner device, characterized in that the gas furnace is directly connected with the internal volume of the chamber pyrolysis; Luggage pyrolysis is located in the combustion chamber above the burner device and formed with two rectangular channel; a combustion chamber connected by a duct with a drying chamber, there is a possibility of the controlled selection of an excess of a mixture of pyrolysis and generating gas from the discharge line blowers.



 

Same patents:

FIELD: technological processes.

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EFFECT: higher efficiency of carbon-bearing wastes gasification.

6 cl, 1 ex, 2 dwg

FIELD: technological processes.

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8 cl, 1 ex, 4 dwg

FIELD: heating.

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FIELD: woodworking.

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4 cl, 5 dwg

FIELD: chemistry.

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1 dwg

FIELD: chemical industry; medicine; woodworking industry; methods and devices used for production of the charcoal.

SUBSTANCE: the invention is pertaining to the wood pyrolysis in the retorts. The invention provides for, that on the charging platform the retorts are loaded with the raw, for example, the raw wood. Then the first retort is placed in the chamber with the minimum heating temperature of 200°С and kept there till the complete removal of the water. At the following stage the first retort is moved in the chamber with the heating temperature up to 400°С, and on its place the second retort is located. At the second stage the separation of the wood gas, resins, acids and alcohol is exercised. In the second half of the second stage the first retort is placed back into the chamber with the heating temperature of 200°С, and the second retort is placed in the chamber with the heating temperature of up to 400°С. Then the first retort is relocated into the chamber with the heating temperature of up to 550°С. At that they exercise separation of the mixture of the gases and the solid fractions of the product, the second retort is placed in the chamber with the heating temperature up to 400°С, and the third retort - in the chamber with the heating temperature of 200°С. Upon termination of the process the first retort is placed on the site for cooling. The rest retorts are relocated according to the above mentioned scheme. After cooling the first retort is placed on the turnover device, where the retort contents moved to the receiving hopper. The invention allows to improve the quality and to increase output of the charcoal.

EFFECT: the invention ensures the improved quality and increased output of the charcoal.

2 cl, 2 dwg

FIELD: petroleum processing.

SUBSTANCE: hydrocarbon stock processing that can be used in production of activated carbon comprises preliminary thermal treatment thereof using gaseous heat carrier followed by processing at 200-900°C in reactor under reductive gas atmosphere in presence of saturated steam supply, cooling, and discharging activated carbon. Reductive gas is generated by combusting hydrocarbon fuel with air consumption ratio below 1.0 and then mixed with thermochemical processing gases in proportion 1:(0.1-10). In order to control temperature conditions, reductive gas is fed to at least three reaction zones and, prior to be fed to each individual reaction zone, reductive gas is preliminarily mixed in proportion ensuring specified temperature conditions in different zones, whereas process is carried out according to known temperature regimes in production of products with specified parameters.

EFFECT: expanded process possibilities due to enabled temperature conditions control, increased accuracy in achieving specified parameters of product, and reduced power consumption.

2 cl, 1 dwg, 2 ex

FIELD: environmental protection.

SUBSTANCE: device comprises furnace, heating chamber, plate, vertical removable retort tightly mounted on the plate for permitting pyrolytic gases to be discharged in the bottom section of the retort, and gas duct for supplying gases to the furnace. The plate is made of heat-resistant material and has opening that receives unmovable device for discharging pyrolytic gases to the gas duct. The plate is provided with gate valve made of a heat-resistant loose material . The retort is tightly mounted on the valve gate. The device for discharging the pyrolytic gases is made of a section or two sections of a pipe. The plate is made of a heat-resistant steel.

EFFECT: improved environmental protection.

2 cl, 2 dwg

Ablative reactor // 2281313

FIELD: chemical mechanical engineering; reactors for fast pyrolysis of wood and peat.

SUBSTANCE: proposed reactor has pyrolizer equipped with rotor made in form of hollow cylinder with blades rigidly secured on its lateral surface and located at equal distance relative to one another for smooth heating of its lateral surface; reactor is also provided with loading bin. Pyrolizer is provided with turbine mounted under rotor; turbine has several blades rigidly secured on its shaft. Turbine shaft and hollow cylinder of rotor are rigidly interconnected. Loading bin is engageable with hollow cylinder. Pyrolizer is made in form of truncated cone whose larger base is directed upward; it is mounted in housing for rotation about its axis. Rotor is located in upper part of pyrolizer coaxially relative to it for rotation around its axis in direction opposite to direction of rotation of pyrolizer at rate equal to rate of pyrolizer. Blades of rotor and turbine are made in form of right-angled trapeziums whose large bases are directed upward.

EFFECT: high yield of vapor-and-gas product.

2 cl, 1 dwg

Charcoal kiln // 2256686

FIELD: wood-chemical production.

SUBSTANCE: the invention is pertaining to the field of resin industry, in particular, to wood-chemical production and also intended for production of charcoal and for complex utilization of wood wastes. The charcoal kiln contains a heat-insulated chamber of pyrolysis and drying used for installation of containers with firewood, a fire box, a scatter, a pipeline with an air blower and a cooler. At that the drying chamber is supplied with a heater and it is stand-alone unit. The scatter represents vertically placed perforated headers fixed in the lower part of the container communicating with a gas duct of the fire-box through a compactor. The fire box is made in the form of in series connected a gas generator and a combustion chamber. The pipeline is supplied with a heat insulation. The cooler is made in the form of a jacket-tubular heat-exchanger, the inter-pipe space of which is connected with the heater of the stand-alone drying chamber and the air blower is located behind the cooler. The invention allows to improve the operational characteristics of the charcoal kiln at production of the high quality charcoal.

EFFECT: the invention ensures improved the charcoal kiln operational characteristics at production of the high quality charcoal.

1 dwg

The invention relates to the field of pyrolysis of wood and its waste and other raw materials containing organic substances

The invention relates to the field of control automation pyrolysis of wood in a mobile uglevyzhigatelnuyu furnaces

The invention relates to the field of producing charcoal in chemical production

Charcoal kiln // 2256686

FIELD: wood-chemical production.

SUBSTANCE: the invention is pertaining to the field of resin industry, in particular, to wood-chemical production and also intended for production of charcoal and for complex utilization of wood wastes. The charcoal kiln contains a heat-insulated chamber of pyrolysis and drying used for installation of containers with firewood, a fire box, a scatter, a pipeline with an air blower and a cooler. At that the drying chamber is supplied with a heater and it is stand-alone unit. The scatter represents vertically placed perforated headers fixed in the lower part of the container communicating with a gas duct of the fire-box through a compactor. The fire box is made in the form of in series connected a gas generator and a combustion chamber. The pipeline is supplied with a heat insulation. The cooler is made in the form of a jacket-tubular heat-exchanger, the inter-pipe space of which is connected with the heater of the stand-alone drying chamber and the air blower is located behind the cooler. The invention allows to improve the operational characteristics of the charcoal kiln at production of the high quality charcoal.

EFFECT: the invention ensures improved the charcoal kiln operational characteristics at production of the high quality charcoal.

1 dwg

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